摘要
目的 :明确各种抽吸状态的确切负压值 ,并探讨其意义。材料与方法 :根据吸引器管道不同的连接方式 ,测试各种负压值。截取猪腰椎间盘试件 112个 ,通过盘内实验 ,观察髓核抽吸量与负压的关系、髓核抽吸量与五种方法的关系。结果 :切割器切吸 :盘内负压值 33± 1 5 8KPa ,能抽出 37 2 5± 5 72 %髓核组织 ,吸引器负压表指示 94± 1 5 8KPa不代表盘内工作区的实际负压。切割器水路关闭切吸 :盘内负压值立即上升到 87 6± 2 0 7KPa ,与水路开放交替进行髓核抽吸量达 90± 3 4 9%。直接法抽吸盘内负压值 93 2± 2 39KPa ,髓核抽吸量 70± 11 97% ,两者高度相关r=0 94 2 5 ,P <0 0 1,与切吸常规相结合 ,髓核抽吸量为 86 75± 9 13% ,经比较两种方法都优于单纯切吸常规、直接法与注射器抽吸。结论 :髓核抽吸量与负压值高度相关 ,切吸常规 +关水路与切吸常规 +直接法在各种抽吸方法中效果最佳。
Purpose:To make clear the exact negative pressure value in different negative pressure conditions and study its practical value.Materials and Methods:Using 112 pig lumber disks,through inside disk experiment,the relation between the aspiration amount of nucleus and negative pressure and the relation between the amount and other 5 methods are observed.Results:Aspiration by cutter:Nagative pressure inside the disk is 33±1 58KPa,37 25±5 72% of nucleus can be drawn out.The negative pressure meter indicates 94±1 58KPa.It does not stand for the exact negative pressure value inside the disk.Aspiration with the water system closed:The negative pressure value goes up to 87 6±2 07KPa immediately,With water system open the amount of aspiration can reach 90±3 49%.Direct aspiration:The negative pressure inside the disk is 93 2±2 39KPa,The aspiration amount can reach 70±11 97%,r=0 9425,P<0 01.If this method is combined with routine,the amount can reach 86 75±9 13%.Conclusion:There is a high correlation between the aspiratoin amount and the negative pressure value.Aspiration routine with water circulation closed and aspiration routine with direct aspiration is the best method of all.
出处
《现代医用影像学》
2003年第2期58-61,共4页
Modern Medical Imageology
